Retaining device for removable wheels



Jan. 16, 1923.

J. LEDWINKA.

RETAINING DEVICE FOR REMUVABLE wmELs,

ORIGINAL FILED (EB. 2|. |91?.

Patented Jan. 16, 1923.

UNITED STATES PATENT OFFICE.

JOSEPH `LIEDIINKA. 0F PHILADELPHIA, PENNSYLVANIA. ASSIGNOR, BY MESNE ASSIGNMENTS, T0 BUDD WHEEL COMPANY, 0F PHILADELPHIA. PENNSYL- VANIA, A CORPORATION OF PENNSYLVANIA.

RETAINING DEVICE FOR, REMOVABLE WHEELS.

original application led February 21, 1917, Serial Nov 150,084. Divided and this application led Octebcr 9, 1917. Serial No. 195,514.

To olmo/10m t may concern.'

Be it known that I, Josnrn LnnwiNuA, a citizen of the United States, residing at Philadelphia, in the county of Pl'iiladelphia and State of Pennsylvaniav,y have made a certain new and useful Invention in Retainingl Devices for Removable Wheels, of which the following is a specification.

This invention relates to removable Wheels for vehicles, and particularly to detachable retaining devices therefor.

The object of the invention is to provide a detachableretaining device for-wheels which is eilicient in clamping and retaining the wheel in position, but which is readily and easily detachable to permit the wheel to be removed or replaced.

A further object of the invention is to provide a retaining device of the nature and character referred to which is simple in structure, economical of manufacture, and strong and durable in operation.

Other objects of the invention will appear more fully hereinafter.

The invention consists substantially in the construction, combination, location., and relative arrangement of parts, all as will be more fully hereinafter' set forth, as shown in the accompanying drawing, and finally pointed out in the appended claims.

Referring' to the accompanying drawingz- Fi 1 is a View in central. section of a re-4 mova le wheel structure showing a detachable retaining device applied thereto and embodying the principles of my invention.

Fig. 2 ,is a detached detailed View of. a form of the split retainer ring employed and constructed in accordance with my invention.

Fig. 3 is a detached detailed view in section showing the detachable retaining ring and hub cap in their relative assembled relation.

In carrying out my invent-ion I employ any desired form of hub structure upon which is detachably mounted any desired form of removable Wheel. In the particular fo'm ghown as illustrative of a simple hub structure and detachable wheel mounted thereon, a hub member 4 is mounted upon an axle 5. The hub device or sleeve 4 1s provided with an inner portion 6 of large diameter and extcriorly shaped to von lorin to and to receir(` the boro of tlnl wheel huh sleeve portion 'i'. In practicil prefer to forni the enlarged portion (j oi' tapering conformation peripheraily. and tho wheel .sleeve is complementarily tapered in the opposite direetion so as to slip over the huh portion I". and to be held and clamped thereon by pressure exerted against the outer portion oi' the wheel sleeve. The outer end ol iluhub V-l is of redured diameter and is exteriorly sri-ovl threaded as indicated at H to receive ilu in teriorly threaded rlamp nut i) in 'the usual manner. This clamp nut 9 is provided with a tapering o1' cone shaped exterior periphY eral surface 1U, for a portion ol its length, and a raised shoulder portion l1 for flul ren'niinder of its length. llpon the exteriorly tapered surface 10 of the clump nur is mounted a retaining clamp ring,r member l'. This clamp ring member l2 is stamped or pressed out ot sheet metal and is formed with a hub sleeve portion 13 which interiorly tapered complementary to the exterior taper of the clamp nut 9 and is received upon the tapered surface 10 of the clamp nut. The retaining ring l2 is preferably split as indi` cated at 14, see' Fig. 2 in order to secure cir` culnt'erential resiliency, and also provided with an outwardly extending curved riin or engaging portion 15 suitably' shaped to bear against and engage the outer' end of the Wheel sleeve T or other convenient portion of the detachable wheel. By this instruction when the screw cap il is turned up on the threaded portion 8 of the hub 4 the retaim ing ring 12 is clamped against theI outer ond of the Wheel hub or sleeve and presses the latter into firm and efficient bearing upon the cone shaped portion 6 of the axle hub. By reason of the retaining ring l2 being of resilient sheet metal and being split, as the clamp nut 9 is turned up to cause elicient gripping action of the retaining ring 12, or the engaging portion 15 thereof, with the Wheel hub, the retaining ring is forced over the tapering surface 100i the screw cap 9 and is thereby expanded, and consequently it ex erts an increasingly gripping action upon the clamp nut to revent the latter from beeomarm of the hub ring not only re Jains the wheel upon the axle portion 4. Thus the retaining hill lnl` lso ronslilntes n rlain'ipinnl look to prevent the cap nul U from beingr hacked ofi'. .\l` the sinne time the structure permits; the

ready (llvtuchaliility ol the cup nut` and retainingA ringV for the purpose ol' permitting the when] to luI detached and removed from the axle hnli for repair.y replacement, or other purpose.

I halve shown my invention as applied to n wheel of the pressed steel type, lint ohviously l um not to be limited or restricted in this respect.

The subject mutter of this application is divided from my application, Serial No. '150.084, filed February il, 1917.

A deteclmhle retaining` device of the neture shown und described is not only ellirient in operation lint, is simple in structure, und economical to nmnnfaetnre,

Hering now set forth the object und nature of my invention` and a, construction embodying the sinne, what I claim as nen7 and useful, and of my own invention, and desire to Secure hy Letters Patent, is,-

l. The combination with a detachable wheel havingr a hub und en inner permanent hul) to receive the seme, of a cup nut having :in exteriorly tapered peripheral Surface, and e split ring reteiliingir device having u correnponding'ly tapered here mounted upon the tapered peripheral surface of said cap nnt and engaging Seid wheel hul.) t0 retain the wheel on the inner hul). y

2. The combination with a detecl'iuble wheel and e hub to receive the Seme, of a cap nut and e Split retaining ring, of channel cross section. mounted on said nut and hanv ing un annuler riln portion engaging and deteehebly retaining the Wheel upon the hub.

In testimony `whereof I have hereunto set my7ln1nd on this lst day of October A. D 191 JOSEPH LEDWINKA.

Certificate of Comctlon.

It. is hereb certd that in Letters vPatent, No. 1,442,621, {granted January t6, 1923, upon tl o application of Joseph Ledwinlm, nf Philade phis, Pennsylvania, for an improvementin. Retaining Deviens for Removable Wheels. nn error agpea'rs in the x'infod s'peciiication requiring corxections folljs: Page vl, line 5 for the wor s device or sleevorendmember," and that thoswid Letters Patent. should be read with this correction thereixithnt'the same may conform t'o the moord of the'case in the Patent Oice.

Signsd ond sealed this 27th day of February,- D., 1923` f [ong] 4 KARL FENNING.

` ,Acting Gomdsioner of Patents. 

